<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title>lesson1</title>
		<style>
			*{
				margin: 0;
				padding: 0;
			}
			
		
			div.box1{
				width: 80%;
				height: 200px;
				background: cyan;
				margin: 0 auto;
				overflow: hidden;
			}
			
			ul.ul1{
				height: 400px;
				list-style: none;
				margin-right: -20px;
				background: dodgerblue;
				font-size: 0;
			}
			
			ul>li{
				width: 20%;
				height: 100%;
				box-sizing: border-box;
				background: mediumblue;
				display: inline-block;
				padding-right: 20px;
			}
			li>div{
				height: 100%;
				background-color: navy;
			}
		</style>
	</head>
	<body>
		<div class="box1">
			<ul class="ul1">
				<li><div></div></li>
				<li><div></div></li>
				<li><div></div></li>
				<li><div></div></li>
				<li><div></div></li>
			</ul>
		</div>
	</body>
</html>
